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countessbianca
01.07.2020 •
Mathematics
Can someone please explain how to do this problem? The websites instructions are very poor. Rewrite
and
as equivalent rational expressions with the lowest common denominator.
Solved
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Ответ:
x = -5
Step-by-step explanation:
If you factor each denominator, you can find the LCM.
Now that the denominators are equal, we can clear the denominator and set the numerators equal to each other.
2(x + 4) = 1(x + 3)
2x + 8 = x + 3
x + 8 = 3
x = -5
Ответ:
Q 5.9
Step-by-step explanation:
Que el dinero gastado por Juan sea x
Deja que el dinero gastado por Carolina sea y
Si el dinero total gastado es Q 15
Luego;
x + y = 15 (1)
De la segunda oración;
y = x + 3,2 (2)
Sustituyendo (2) en (1)
x + x + 3,2 = 15
2x + 3,2 = 15
2x = 15 - 3,2
2x = 11,8
x = 5,9
x = Q 5.9
Por lo tanto Juan gastó Q 5.9